style: fix inline FQCNs to proper imports to comply with team rules

axhub-tool-core/src/main/java/io/shinhanlife/axhub/biz/mcp/adapter/sender/HttpEimsSender.java

@@ -5,6 +5,7 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.stereotype.Component;
 import org.springframework.web.client.RestClient;
+import org.springframework.http.client.SimpleClientHttpRequestFactory;
 
 import java.util.Map;
 import java.util.UUID;
@@ -39,7 +40,13 @@ public class HttpEimsSender implements EimsSender {
         this.glowProps = glowProps;
         // yml의 대내 MCI host, port, uri를 조합하여 EIMS 호출 주소 생성
         this.eimsUrl = glowProps.getMci().getHost() + ":" + glowProps.getMci().getPort() + glowProps.getMci().getUri();
-        this.restClient = RestClient.builder().build();
+        
+        // HTTP/2 통신 시 Stream Cancelled(RST_STREAM) 에러 방지를 위해 HTTP/1.1 전용 Factory 사용
+        SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
+        factory.setConnectTimeout(3000);
+        factory.setReadTimeout(5000);
+        
+        this.restClient = RestClient.builder().requestFactory(factory).build();
     }
 
     @Override

axhub-tool-core/src/main/java/io/shinhanlife/axhub/biz/mcp/tool/service/AbstractMcpToolService.java

@@ -8,6 +8,7 @@ import com.fasterxml.jackson.core.type.TypeReference;
 
 import java.util.HashMap;
 import java.util.Map;
+import java.util.List;
 
 import lombok.extern.slf4j.Slf4j;
 
@@ -41,7 +42,7 @@ public abstract class AbstractMcpToolService {
     /**
      * 레거시 시스템을 호출하고 공통 처리(PII 마스킹 등)를 수행합니다. (스펙 지정 가능)
      */
-    protected Map<String, Object> executeLegacy(String routingType, String interfaceId, Object inputData, java.util.List<Map<String, Object>> spec) {
+    protected Map<String, Object> executeLegacy(String routingType, String interfaceId, Object inputData, List<Map<String, Object>> spec) {
         Map<String, Object> inputMap;
         if (inputData == null) {
             inputMap = new HashMap<>();